Experimental Brain Research

, Volume 115, Issue 3, pp 557–561

Adaptation to gradual as compared with sudden visuo-motor distortions

  • Florian A. Kagerer
  • J. L. Contreras-Vidal
  • George E. Stelmach
RESEARCH NOTE

DOI: 10.1007/PL00005727

Cite this article as:
Kagerer, F., Contreras-Vidal, J. & Stelmach, G. Exp Brain Res (1997) 115: 557. doi:10.1007/PL00005727

Abstract

 If visual feedback is discordant with movement direction, the visuo-motor mapping is disrupted, but can be updated with practice. In this experiment subjects practiced discrete arm movements under conditions of visual feedback rotation. One group was exposed to 10°-step increments of visual feedback rotation up to a total of 90°, a second group to a 90° visual feedback rotation throughout the experiment. After the first group reached the 90° visual feedback rotation, its subjects performed faster, with less spatial error, and showed larger aftereffects than the subjects who practiced constantly under the 90° visual feedback rotation condition. Results suggest that gradually increasing feedback distortion allows more complete adaptation than a large, sudden distortion onset.

Key words Visuomotor learningInternal modelsVisual feedback rotationMotor control

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Florian A. Kagerer
    • 1
  • J. L. Contreras-Vidal
    • 1
  • George E. Stelmach
    • 1
  1. 1.Motor Control Laboratory, Arizona State University, Tempe, AZ 85287–0404, USA; Fax: +1 (602) 965–8108, e-mail: pepe@iris196.la.asu.eduUS